f/overrides/event-backup/fmcdx-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00

695 B

1DateDividends
22006-12-081.703000
31998-12-180.460000
42002-01-040.060000
52012-12-140.161000
62013-12-130.006000
72015-12-180.511000
82020-12-290.883000
92004-01-090.045000
102005-12-092.628000
112006-01-060.785000
122007-12-143.341000
132009-12-110.058000
142016-01-150.059000
152021-12-285.708000
162023-12-260.236000
172024-12-261.287000
182001-01-050.170000
192005-01-070.450000
202007-01-050.370000
212018-12-266.262000
222022-12-273.358000
232000-01-070.200000
242004-12-100.720000
252011-12-160.097000
262012-12-270.018000
272025-12-263.653000
282016-12-270.195000
292019-12-271.480000
301996-12-200.010000
311999-12-171.200000
322000-12-151.890000
332008-01-110.130000
342010-04-300.009000
352017-12-261.755000